body{
    background-color: #000000;
    color: #a0a0a0;

    margin: 0;
}
.heading{
    z-index: 1;
    background-color: #0008;
    position: absolute;
    margin: 10px;
    width: 400px;
    height: 100px;
    border-radius: 10px;
}
.title{
    font-family:'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    position: absolute;
    font-size: 60px;
    margin: 10px;
    z-index: 1;
}
.game-intro{
    font-family:'SIMHEI', Tahoma, Geneva, Verdana, sans-serif;
    position: absolute;
    font-size: 20px;
    margin: 20px 0px 0px 200px;
    z-index: 1;
}
.speed{
    font-family:'SIMHEI', Tahoma, Geneva, Verdana, sans-serif;
    position: absolute;
    float: right;
    font-size: 20px;
    right: 1%;
    top :1% ;
    z-index: 1;
    padding: 5px;
    background-color: #0008;
    border-radius: 5px;
}
#canvas{
    position: absolute;
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}